The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking a sole source procurement for three units of the rotor brake, main gear, identified by NSN 7R-2530-LLQU4S550-H5 and part number 06392-08801-043. This acquisition is critical as the government lacks sufficient data to contract with sources other than the current supplier, emphasizing the importance of government source approval prior to award. The items are subject to Free Trade Agreements and the World Trade Organization Government Procurement Agreement, highlighting their international procurement significance. Interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure, available online, and can direct inquiries to Samantha M. Freedman at Samantha.M.Freedman.CIV@us.navy.mil.